What’s the most fun you’ve had with your web cam recently? If you don’t have an answer, it’s not your fault. There’s not a whole lot you can do with your computer’s camera outside of Skyping Grandma and taking pictures with birdies over your head in Photo Booth (that’s actually pretty fun, though). Anyway, thanks to creative coder Audun Mathias Øygard, we have an entirely new desktop diversion, equal parts eerie and entertaining. It’s a website that lets you wear celebs’ faces.

With Øygard’s “face substitution” demo you can try on over a dozen famous faces, from Walter White and Mona Lisa to Barack Obama and Kim Kardashian. Building on face-tracking algorithms from a group of researchers at Carnegie Mellon’s Robotics Institute, Øygard’s self-built Javascript library follows 70 points on your face in real time. Tilt your head, wiggle your eyebrows, or stick out your tongue, and the virtual visage remains stretched over yours all the while.

Some of the digital masks end up looking better than others. The “Terminator” one made me look like a bruised up character from the original N64-era Goldeneye; the Nic Cage face, to my eyes, actually had more of an Abraham Lincoln look, but that could just be because I’m intimately familiar with every facial expression the real Nic Cage has ever made.

Shaken, not stirred.

Sean Connery, I thought, was pretty damn convincing, and I silently enjoyed watching myself wear the old Scot’s mug—my iMac transformed into a mad, mesmerizing mirror—while my coworkers toiled on around me wearing no countenance but their own.

Øygard’s isn’t the first face-substituting effort, citing a project by artists Kyle McDonald and Arturo Castro as inspiration. But its real-time operation is pretty impressive (it relies on WebGL and works best in Chrome). And as cameras and videogame systems become even further intertwined, you could imagine how this sort of technology could be applied. Like James Cameron’s actors in Avatar, your in-game doubles could wince and grimace with you in real life. With your actual expressions in the mix, something like Second Life becomes even more uniquely engaging.

In the meantime, Øygard’s site is a fun proof of concept. To my fellow end-of-the-work-week time wasters, though, I issue this warning: It is extremely hard not to talk in a Sean Connery voice when you’re wearing his face.